ok. i have tried many times to get mms working on the hov with some success, but not 100%. i now have an HTC EVO 3D. and found ( I did not come up with this) thanks to bunvilla here
I think I read the stock T-Mobile kernel is write protected. So you have to flash a custom kernel
HTC Evo 3d flashed to Cricket
H-boot: Jbear 1.50 S-off
ROM: Dirty Unicorns
I have cricket. I have down many many hours trying to make mms work. I have found a lot if info out which makes it a little easier each time. Right now, I am on 1.7.1 and mms works with a very strange setup. But it is in the build.prop, apns-c...
or we can learn to build our own stuff. (not that i can, but i am trying to learn)